In this study, star anise (Illicium verum) essential oils (SAEOs) were extracted by hydrodistillation (HD), ethanol solvent extraction (ESE), supercritical CO2 (SCD) and subcritical (SE) via electronic nose (E-nose), gas chromatography-mass spectrometry (GC-MS), GC-ion mobility (GC-IMS). GC-MS GC-IMS used to identify the volatile compounds, was also determine their concentrations. Principal com...

The use of medicinal plants played a crucial role in human survival for many years. Papea capensis is used mostly the Northern part South Africa and neighboring countries. woody tree was collected, shade dried, powdered. extraction experiments (ethanolic extract, methanol water extract) were done at Synexa Life Sciences. For purpose identifying biochemical elements present wood portion Pappea c...

Because of the growing number analysis scenarios involving complex samples, comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry (GC×GC–TOF-MS) is now a prominent technique for characterization. However, limitations on time, expenses, and sample quantities, as well need specialized expertise in comparative analysis, can prevent discovery analytes that d...

a gas chromatography mass spectrometry with spike calibration curve method was used to quantify three carbamate pesticides residue in cooked white rice and to estimate the reduction percentage of the cooking process duration. the selected pesticides are three carbamate pesticides including carbaryl and pirimicarb that their mrl is issued by “the institute of standards of iran” and propoxur whic...